/**
 * VK.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

/**
 * This file exposes a set of the common KeyCodes for use. Please grow it as needed.
 */
define(
  'tinymce.core.util.VK',
  [
    "tinymce.core.Env"
  ],
  function (Env) {
    return {
      BACKSPACE: 8,
      DELETE: 46,
      DOWN: 40,
      ENTER: 13,
      LEFT: 37,
      RIGHT: 39,
      SPACEBAR: 32,
      TAB: 9,
      UP: 38,

      modifierPressed: function (e) {
        return e.shiftKey || e.ctrlKey || e.altKey || this.metaKeyPressed(e);
      },

      metaKeyPressed: function (e) {
        // Check if ctrl or meta key is pressed. Edge case for AltGr on Windows where it produces ctrlKey+altKey states
        return (Env.mac ? e.metaKey : e.ctrlKey && !e.altKey);
      }
    };
  }
);
